how to write a tcp proxy?

问题:

I am curious about the tcp proxy implementation.

Can you give me some tips about how to understand and develop a naive version?

And is there any good materials(or open projects) or tutorial on it? =)

回答1:

Building a well working proxy is no simple task as you will have to understand and handle several protocols etc. in both directions...

I would recommend to either use an existing library for that OR some configurable proxy...

• http://www.mentalis.org/soft/projects/proxy/ (with source)
• http://fusion.corsis.eu/ (with source)
• http://www.wingate.com/
• http://www.squid-cache.org/